Systems Administrator III/IV

Amentum; Houston (TX); On-site; USD 87,840 - 107,360; Full time

Benefits offered by this job

Health, dental, and vision insurance

Retirement benefits (401(k) matching)

Educational reimbursement

Parental leave

Employee stock purchase plan

Tax-saving options

Disability and life insurance

Pet insurance

Job summary

Amentum is seeking a Systems Administrator III/IV to join our team in Houston. The role focuses on daily system administration, patching, security, and performance tuning in a multi-server environment. You will manage AD, Linux security, and cloud/server operations.

The position requires a strong background in Windows and Linux systems, virtualization technologies, and backup solutions, with opportunities to lead infrastructure improvements and support disaster recovery planning.

Qualifications

• Bachelor’s degree or equivalent certification in a related area.
• 10 years of experience in system administration or a related field.
• Strong background in Windows domain architecture, Active Directory, Linux OS/network security, and load balancing.

Responsibilities

• Perform daily maintenance and operations tasks in a multi-server environment.
• Maintain and tune virtual environments with latest virtualization software.
• Oversee patch remediation and software deployment; ensure backups are effective.

Education

Bachelor’s degree in Computer Science or related field

Tools

Windows Server

Linux

Active Directory

Load Balancing

Virtualization

Veeam Backup

Cloud-based server administration

Splunk

Sentinel One

BigFix

Job description

Are you passionate about human space exploration, understanding the origins of the universe, and working with a passionate and diverse team to make a difference? If you are, we need you!

We need your talent, teamwork, and energy to help us achieve great things that inspire people all over the globe. We need you to bring creative ideas and diverse backgrounds to help us envision, shape, and deliver systems that will enable the exploration of space while benefiting people here on Earth. We are excited about what we do, and we need you on our team as we take on exciting challenges for NASA’s pursuits in deep space exploration. As NASA’s largest engineering solutions provider working together with NASA at centers across the United States.

We have an exciting opportunity for a Systems Administrator III/IV to join our team!

The Systems Administrator III/IV will:

• Perform daily maintenance and operations tasks related to system administration in a multi-server environment.
• Provide maintenance and performance tuning of the virtual environment utilizing latest versions of various virtualization software, support tools.
• Oversee patch remediation and software deployment.
• Ensure all backup/restore operations are effective.
• Maintain and enhance system security across the environment.
• Monitor systems and produce required reports to maintain documented service levels.
• Provide support for local and shared services (account management, storage arrays, disaster recovery, etc.)
• Update documentation and maintain configuration control for the environment.
• Manage multiple projects for improvements to the infrastructure.
• Perform physical server installation into the server racks and removal from server racks.
• Perform server hard drive replacements.
• Provide Active Directory support for user permissions.
• Complete server shutdown and power ups during hurricane season or general scheduled power outages.
• Make any approved software install requests.
• General server and network configuration.
• Support Cloud Migration and Cloud Server and Network Operations.
• Perform other duties as required.

Requisition Qualifications:

This position has been posted at multiple levels.Depending on the candidate's experience, requirements, and business needs, we reserve the right to consider candidates at any level for which this position has been advertised.

• Typically requires a bachelor’s degree or equivalent certification in a related area and normally possess 10 years of experience in the field or in a related area.
• The candidate must also have a strong background in understanding Windows domain architecture, Active Directory, Linux operating systems/network security, and load balancing in order to perform day-to-day duties.
• Must have knowledge of latest Windows Server operating systems, latest Linux Operating Systems, and virtualization technologies.

Requisition Preferences:

• Bachelor’s degree in a computer or system science discipline from an accredited college or university and from 5-15 years of progressive, relevant experience.
• Experience in the following technologies:

• Windows Operating Systems 2022+
• Linux Operating Systems – current various distributions
• Splunk
• Sentinel One (S1) Endpoint Detection Software
• BigFix operations
• Virtualization technologies
• Veeam Backup Software
• Cloud-based server administration
• Cluster computing with related application experience

Why Join Our Team?

In addition to exciting career opportunities, we also have:

• Excellent personal and professional career growth
• 9/80 work schedule (every other Friday off), when applicable
• Onsite cafeteria (breakfast & lunch)
• Much, much more!

For more information on our partnership with NASA at Johnson Space Center (JSC), please visit www.wehavespaceforyou.com

• Proof of U.S. Citizenship or US Permanent Residency may be a requirement for this position.
• Must be able to complete a U.S. government background investigation.
• Management has the prerogative to select at any level for which the position is advertised.

Essential Functions

Work Environment

Generally, an office environment, but can involve inside or outside work depending on task.

Physical Requirements

Work may involve sitting or standing for extended periods (90% of time). May require lifting and carrying up to 25 lbs. (5% of time).

Equipment and Machines

Standard office equipment (PC, telephone, printer, etc.).

Attendance

Regular attendance in accordance with established work schedule is critical. Ability to work outside normal schedule and adjust schedule to meet peak periods and surge requirements.

Other Essential Functions

Professional behavior that enhances productivity and promotes teamwork and cooperation. Grooming and dress must be appropriate for the position and must not impose a safety risk/hazard to the employee or others.

#JETS #JETSII

Compensation Details:

97600.00

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

• Health, dental, and vision insurance
• Paid time off and holidays
• Retirement benefits (including 401(k) matching)
• Educational reimbursement
• Parental leave
• Employee stock purchase plan
• Tax-saving options
• Disability and life insurance
• Pet insurance

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

Original Posting:

07/29/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.